Answered: a Java program that defines and uses 3…

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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a Java program that defines and uses 3 overloaded methods (the Java file name
should be “MethodOverload.java” and all the 3 methods should have the same method
name max). The 3 method headers are given below with their definitions:
• int max(int n1, int n2, int n3):
o to return the maximum of the passed 3 integer arguments.
• double max(double d1, double d2, double d3):
o to return the maximum of the passed 3 double arguments with use of
Math.max() method—that is, do not use if or if-else statement in
comparing the numbers to find the smaller/smallest numbers.
• int max(int n):
In the main method of the application, a loop with switch-statement inside is required for
testing the different method calls and you need to generate random numbers for the inputs
as the arguments for the methods (except for die-rolling case where an input is entered
from the keyboard.). Specifically:
• int max(int n1, int n2, int n3): the 3 random integers should be from the sequence
2, 5, 8, 11, 14.
• double max(double d1, double d2, double d3): the 3 random double numbers
should be from the range [10, 20].
o Hint: a random number from the range [min, max] is generated through
min + (max-min) * randomNumbers.nextDouble();
• int max(int n): the input for the number of rolls n is entered from the keyboard.

Write a Java program that defines and uses 3 overloaded methods (the Java file name
should be “MethodOverload.java" and all the 3 methods should have the same method
name max). The 3 method headers are given below with their definitions:
• int max(int n1, int n2, int n3):
o to return the maximum of the passed 3 integer arguments.
• double max(double d1, double d2, đouble d3):
o to return the maximum of the passed 3 double arguments with use of
Math.max() method-that is, do not use if or if-else statement in
comparing the numbers to find the smaller/smallest numbers.
int max(int n):
In the main method of the application, a loop with switch-statement inside is required for
testing the different method calls and you need to generate random numbers for the inputs
as the arguments for the methods (except for die-rolling case where an input is entered
from the keyboard.). Specifically:
• int max(int n1, int n2, int n3): the 3 random integers should be from the sequence
2, 5, 8, 11, 14.
• double max(double d1, double d2, double d3): the 3 random double numbers
should be from the range [10, 20].
• Hint: a random number from the range [min, max] is generated through
min + (max-min) * randomNumbers.nextDouble();
int max(int n): the input for the number of rolls nis entered from the keyboard.
(See a testing sample of this program on next page.)

Choose one of the following numbers for your operations:
1: for max(int n1, int n2, int n3).
2: for max(double d1, double d2, double d3).
3: for max(int n).
e: to stop.
1
Three random integers are: 5 11 2; their max is: 11.
Choose one of the following numbers for your operations:
1: for max(int n1, int n2, int n3).
2: for max(double d1, double d2, double d3).
3: for max(int n).
e: to stop.
2
Three random double numbers are: 17.916767 10.537079 10.478294;
their max is: 17.916767.
Choose one of the following numbers for your operations:
1: for max(int n1, int n2, int n3).
2: for max(double d1, double d2, double d3).
3: for max(int n).
e: to stop.
3
Enter how many rolls the die will roll: 12345
After 12345 rolls, the most-frequently occured side is: 6.
Choose one of the following numbers for your operations:
1: for max(int n1, int n2, int n3).
2: for max(double d1, double d2, double d3).
3: for max(int n).
0: to stop.

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